Adaptive sports ankle joint prosthesis
US8308818B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 18, 2010 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Apr 29, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/5072
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ankle joint prosthesis comprised of a central core element capable of attachment to an artificial leg, coupled to two side elements capable for attachment to an artificial foot. The medial and lateral side elements envelop the central core element lower region along a common central axis, and are coupled together by a mechanical fastening mechanism and can be rotated relative to the central core element and positively constrained to align in various orientations dependent of a specific grooved profile within each side element pair. The ankle joint orientation is affected by engaging an anterior and/or posterior located mechanical linkage enacting an upward linear movement on a guide pin plunger, thus allowing the side elements to rotate by a torque force from a torsion spring until reaching orientation held in place along a grooved profile. The load bearing elements shall be precision machined from Grade 5 Titanium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.